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Results from the \u2018auscultatory\u2019, \u2018pH\u2019 and \u2018colorimetric capnometry\u2019 methods were compared with the location of the nasogastric tube as determined through radiography. Descriptive statistics, Eta analysis and the Cohen kappa compliance test as well as sensitivity and specificity were conducted.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a weak agreement (26.3%) between the auscultation and radiological evaluation for confirming nasogastric tube placement. The pH measurement and colorimetric capnometry methods were not correlated with radiological evaluation. Stomach pH increased as patient age increased and use of the colorimetric capnometry method failed to confirm the oesophageal and duodenal location. The specificity of the auscultation was low, and both the specificity and sensitivity pH methods were low.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>It was determined that auscultation, measuring pH and colorimetric capnometry were unreliable methods for confirming placement of nasogastric tubes. It is recommended to confirm initial placement of the nasogastric tube with radiography and to develop effective and reliable non\u2010radiological measurement methods that can be performed at the bedside.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ijn.13049","type":"journal-article","created":{"date-parts":[[2022,3,14]],"date-time":"2022-03-14T02:33:07Z","timestamp":1647225187000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["The effectiveness of auscultatory, colorimetric capnometry and pH measurement methods to confirm placement of nasogastric tubes: A methodological study"],"prefix":"10.1111","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4342-3321","authenticated-orcid":false,"given":"Nihal","family":"Taskiran","sequence":"first","affiliation":[{"name":"Department of Fundamentals of Nursing, College of Nursing Aydin Adnan Menderes University  Aydin Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1859-2855","authenticated-orcid":false,"given":"Dilek","family":"Sari","sequence":"additional","affiliation":[{"name":"Department of Fundamentals Nursing Ege University College of Nursing  Izmir Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,3,13]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmjgast-2015-000064"},{"key":"e_1_2_9_3_1","unstructured":"Barlas G.(2017).Acil Serviste Nazogastrik T\u00fcp Tak\u0131lan Hastalarda T\u00fcp\u00fcn Yerinin \u0130drar Stribi Kullan\u0131larak Do\u011frulanmas\u0131. 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